Views: 0 Author: Site Editor Publish Time: 2022-09-27 Origin: Site
1. Centralized dust removal
In the dust removal process, dust collecting hood, conveying pipeline, bag filter, induced draft fan and chimney are used. Its disadvantages are large investment, low dust capture rate, easy blockage of horizontal pipes, which affects the capture rate; Large exhaust volume and high operation cost; The dust remover, induced draft fan and chimney cover a large area, the pipeline is complex, the diameter of the main pipeline is large, there are many branch pipes, and the pipeline is long; There are many valves in the system, and the balance and adjustment of system air volume are complex; Full time operation and maintenance personnel and dust transportation equipment are required.
The biggest difficulty in dust removal of the existing large inclined belt conveyor is dust collection and transportation. Its belt guide groove is equipped with a conical cover, which is integrated with the dust transmission pipeline. In order to avoid dust overflowing the capture cover, the guide chute must be under negative pressure; In order to avoid dust deposition in the pipeline, high air volume must be used for transportation. Both factors require strong power. Once the dust is deposited in the pipeline, the exhaust efficiency will be greatly reduced, the negative pressure state in the collection hood will be destroyed, and the dust will overflow the collection hood, which will greatly reduce the collection efficiency. A large inclined belt for bag type dust removal is used. After one or two years of operation, the dust removal pipe is blocked, the dust removal system is paralyzed, and the dust at the dust raising point is flying. On the other hand, a certain amount of materials and dust are deposited between the guide chute and the corrugated rib. When the belt enters the inclined part, the accumulated materials and dust slide off the baseband of the belt, causing secondary dust pollution.
2. Decentralized dust removal.
Decentralized dedusting is to form a dedusting system by relatively centralizing the dust source positions of the large inclined belt conveyor or by gathering several dust source points on the same production section. The system pipeline is short, the pipe diameter is small, the equipment layout is convenient, and the operation can be interrupted. The dedusting facilities can be interlocked with the theme equipment. When there is no pollution, the dedusting system can be stopped. The dust nature is simple, which is convenient for recycling. The dedusting equipment is distributed near the dust source or workshop, Production operators can establish management and operation. However, this dedusting method has a large number of equipment, occupies a certain site, and requires a dust discharge device, which leads to high equipment investment.
Recently, the Jining High-tech Zone General Trade Union and the Human Resources Department of Jining High-tech Zone jointly announced the 2024 'High-tech Craftsman' list. Li Zhenbo, General Manager of Information Technology at China Coal Group and General Manager of Zhongyun Group, was awarded the title of 'High-tech Craftsman' for his outstanding contributions and innovative spirit.
On September 30th, China Coal Group held a grand cultural performance to celebrate the 75th anniversary of the founding of the People's Republic of China with the theme of 'Forging Ahead to Celebrate the Birthday of the People's Republic of China' in the conference center. The chairman of China Coal Group, Mr. Qiu Qing, the general manager of China Coal Group, Mr. Han Yong, and all the members of the leadership team of China Coal Group attended the event and witnessed the grand celebration together with more than 1,000 employees on the spot. The cultural performance was conducted in the way of 'on-site + webcast', aiming to show the spirit of the cadres and workers of China Coal Group and express the love and blessing to the great motherland through colorful cultural programs.
On September 29th, in this season of autumn and fruitfulness, China Coal Group, full of joy and pride, participated in the ‘Harvest Celebration and National Day’, which was jointly organized by Jining Hi-Tech District Federation of Trade Unions and Jiezhuang Street to welcome the 75th anniversary of the founding of New China and the Farmer's Harvest Festival.
